Brick structure found in Kollidam riverbed traced to Sangam period, was used for water management: T.N. Archaeology Dept. gopalkumarthakur@gmail.com 1 month ago The structure became partly exposed after the water level in the Kollidam receded last month Related posts: How cable TV network came under the TN government’s control Tamil Nadu election results 2026: Full list of winners How Vijay built a grassroots base even before launching TVK Did kids make ‘Vijay mama’ a success?